I listened to the lecture with anticipation of how Younghan would teach it ^^ When I first studied programming languages, I remember that it was difficult and hard to understand, but if Younghan had Java lectures when I was studying programming, it wouldn't have felt difficult and would have been easy and fun! Among the parts you mentioned in the lecture, there were many parts that you said were the most important, but the most memorable one was the principle: Java always copies the value of a variable and assigns it. ㅋㅋㅋ I think it was because I've been interested in call by value and call by reference recentlyㅎㅎ I'll focus on my work and studies while waiting for the next lecture~ I hope you always stay healthy!! (Younghan needs to be healthy to listen to more good lectures..sob sob..ㅋㅋ;;) I hope you achieve everything you want to achieve in the new year Happy New Year~~!